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Positive thyroid antibodies and risk of thyroid cancer: A systematic review and meta‑analysis

  • Authors:
    • Yang Xiao
    • Quan Zhou
    • Yong Xu
    • Song‑Lin Yuan
    • Qing‑An Liu

  • View Affiliations

  • Published online on: June 21, 2019     https://doi.org/10.3892/mco.2019.1886
  • Pages: 234-242

  • Copyright: © Xiao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Previous studies assessing the association between thyroid antibodies and the risk of thyroid cancer (TC) have produced inconsistent results. The present study therefore conducted a meta‑analysis of the available data. PubMed, Embase and the Cochrane Library were searched for the retrieval of relevant studies and a meta‑analysis was conducted to systematically evaluate the association between positive thyroid antibodies and the risk of TC. This search identified 16 articles containing 17 studies on thyroglobulin antibodies (TgAb), which involved a total of 34,488 patients. Positive TgAb was associated with an increased risk of TC [odds ratio (OR)=1.93, 95% confidence interval (CI)=1.64‑2.27, I2=67.2%]. Whether to adjust for confounding factors (gender and thyroid nodule number) was the main cause of heterogeneity. A stronger association between positive TgAb and an increased risk of TC was identified in the studies with an unadjusted thyroid nodule number (OR=2.14, 95% CI=1.82‑2.52), as compared to those with an adjusted thyroid nodule number (OR=1.61, 95% CI=1.29‑2.00; P=0.04). In addition, 12 studies on thyroid peroxidase antibodies (TPOAb) involving 30,007 patients were included. Positive TPOAb was associated with an increased risk of TC (OR=1.50, 95%CI=1.16‑1.95, I2=83.0%). No significant heterogeneity was observed in the PTC group. Positive TgAb is an independent risk factor for TC. The association between positive TPOAb and increased risk of TC needs to be further studied.
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September-2019
Volume 11 Issue 3

Print ISSN: 2049-9450
Online ISSN:2049-9469

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  • CiteScore Rank: Q3: #242/366 Oncology
  • Source Normalized Impact per Paper (SNIP): 0.693
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Spandidos Publications style
Xiao Y, Zhou Q, Xu Y, Yuan SL and Liu QA: Positive thyroid antibodies and risk of thyroid cancer: A systematic review and meta‑analysis. Mol Clin Oncol 11: 234-242, 2019
APA
Xiao, Y., Zhou, Q., Xu, Y., Yuan, S., & Liu, Q. (2019). Positive thyroid antibodies and risk of thyroid cancer: A systematic review and meta‑analysis. Molecular and Clinical Oncology, 11, 234-242. https://doi.org/10.3892/mco.2019.1886
MLA
Xiao, Y., Zhou, Q., Xu, Y., Yuan, S., Liu, Q."Positive thyroid antibodies and risk of thyroid cancer: A systematic review and meta‑analysis". Molecular and Clinical Oncology 11.3 (2019): 234-242.
Chicago
Xiao, Y., Zhou, Q., Xu, Y., Yuan, S., Liu, Q."Positive thyroid antibodies and risk of thyroid cancer: A systematic review and meta‑analysis". Molecular and Clinical Oncology 11, no. 3 (2019): 234-242. https://doi.org/10.3892/mco.2019.1886